CN101332541A - Short burst laser cleaning method of metal surface - Google Patents
Short burst laser cleaning method of metal surface Download PDFInfo
- Publication number
- CN101332541A CN101332541A CNA2008101348806A CN200810134880A CN101332541A CN 101332541 A CN101332541 A CN 101332541A CN A2008101348806 A CNA2008101348806 A CN A2008101348806A CN 200810134880 A CN200810134880 A CN 200810134880A CN 101332541 A CN101332541 A CN 101332541A
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- Prior art keywords
- laser
- face
- cleaning
- metal surface
- metal
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- 238000004140 cleaning Methods 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 238000005554 pickling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
Abstract
The invention provides a method for cleaning a metal surface by short pulsed laser. The method cleans the area to be cleaned on the metal surface in a manner of round lapping irradiated by defocusing facula of laser and is characterized in that: (1) the short pulsed laser is adopted to clean the surface, wherein, the laser pulse width is less than 100ns, and the peak power density is more than 100MW/cm<2>; (2) when processed, the end face, as well as the upper surface and the lower surface near the end face, need to be cleaned, and the laser irradiates the upper surface of a sheet metal at an inclined angle of 45 - 60 degrees, with part of the laser facula being projected on the end face and the other part of the laser facula being projected on the upper surface; mainly aiming at meeting the requirements for cleaning a thin layer of oxide film on the surface of titanium alloy, aluminum alloy and the like before welding, the method can obtain higher surface cleaning quality than the conventional laser cleaning method and faster process flow than acid cleaning method, is suitable for rapid treatment of laser processing, and has good reference value for the fast flow of processing production line and wide applicability.
Description
Technical field
The present invention is a kind of short burst laser cleaning method of metal surface, belongs to laser processing technology.
Background technology
Material such as titanium alloy, aluminium alloy needs to clean the oxide-film of machined surface before thermal process such as welding, reparation, to prevent because defectives such as the pore that oxide on surface or other impurity cause, hydrogen embrittlements.Present acid cleaning process need carry out at pickling tube, and when sheet material was welded, welding region only was an end face area, but need clean total; When titanium alloy structure is repaired, often also there is difficulty in the cleaning of repairing the position.
What be used at present that the laser cleaning technique of paint removal, rust cleaning adopts is continuous laser or the pulse width pulse laser greater than 1us, the power of laser instrument is higher, be generally more than the 500W, the object that cleans is an enamelled coating, the layer that gets rusty etc. and the visibly different material of base material, to surperficial quality requirement particularly composition to require be not very high, therefore can obtain very high cleaning efficiency.
Summary of the invention
The present invention designs the short burst laser cleaning method that a kind of metal surface is provided at above-mentioned prior art situation just, it is to utilize short-pulse laser to act on the metal surface, clears up the laser cleaning method of the impurity such as oxide-film of metal surface by the vaporization of material.Technical solution of the present invention is primarily aimed at the requirement of cleaning before the welderings such as titanium alloy, aluminium alloy, can obtain to clean higher surface quality than conventional laser, simultaneously than pickling handling process faster, the fast processing that is fit to Laser Processing, fast process to machining production line has good reference value, and applicability is wide.
The objective of the invention is to realize by following measure:
The short burst laser cleaning method of this kind metal surface; it is to utilize circular or other shape overlapping mode that defocuses hot spot irradiation of laser that large-area cleaning is carried out in the position to be cleaned of metal surface; can be under atmospheric environment; also can as required metal covering be placed under the protective atmospheres such as vacuum environment or argon gas, it is characterized in that:
(1) adopt short-pulse laser to clean, laser pulse width is less than 100ns, more than the peak power density 100MW/cm2;
When (2) handling end face, need clean end face and adjacent upper and lower surface zone, laser and sheet material upper surface are 45 °-60 ° angle incident, a laser facula part projects to end face, a part projects to upper surface, handles lower surface after upper surface is handled as stated above and handles end face once more.
Description of drawings
Fig. 1 is a large tracts of land of the present invention hot spot overlapping mode when cleaning
Fig. 2 is the cleaning way of laser of the present invention to end face
The specific embodiment
Below with reference to embodiment technical solution of the present invention is further described:
Shown in accompanying drawing 1～2; defocus hot spot 1 irradiation in position to be cleaned what titanium alloy, aluminum alloy surface were utilized short-pulse laser; when position to be cleaned is the band distribution; utilize the circular light spot overlapping mode to realize large-area cleaning; when laser and material effects,, metal covering can be placed under the protective atmospheres such as vacuum environment or argon gas for preventing the small amounts of metal surface under air ambient; it is characterized in that
(1) adopt short-pulse laser and use protective atmosphere to carry out laser cleaning: laser pulse is less than 20ns; concrete 20～the 30ns that adopts; 8～15ns; more than the peak power density 100MW/cm2; when this short-pulse laser acts on the metal surface; laser and material mainly produce vapography, and oxide-film is at the easier absorption laser energy of laser action in addition.Select suitable power density according to the metal material surface state, the light tone that the metal surface is exposed metal after by pulse laser irradiation is a benchmark, when a hot spot can not cover need to handle regional, adopts the hot spot overlapping mode to realize.When the laser cleaning metal surface,, metal covering can be placed under the protective atmospheres such as vacuum environment or argon gas for preventing the small amounts of metal surface under air ambient.
(2) adopt two-sided oblique laser incident mode to handle end face: when the end face of laser cleaning sheet material, need clean end face and adjacent upper and lower surface zone, adopt laser 2 and sheet material upper surface to be 45 °-60 ° angle incident, a laser facula part projects to end face, a part projects to upper surface, handles upper surface and end face by the hot spot overlap joint then; Handle lower surface after upper surface is handled after the same method and handle end face once more.
Patent of the present invention is primarily aimed at the requirement of the preceding very thin layer oxide films of clean surface of weldering such as titanium alloy, aluminium alloy, can obtain to clean higher surface quality than conventional laser, simultaneously than pickling handling process faster, the fast processing that is fit to Laser Processing, fast process to machining production line has good reference value, and applicability is wide.
Claims (2)
1. the short burst laser cleaning method of a metal surface; it is to utilize the circular overlapping mode that defocuses hot spot (1) irradiation of laser that large-area cleaning is carried out in the position to be cleaned of metal surface; simultaneously metal covering is placed under the protective atmospheres such as vacuum environment or argon gas, it is characterized in that:
(1) adopt short-pulse laser to clean, laser pulse width is less than 100ns, more than the peak power density 100MW/cm2;
When (2) handling end face, need clean end face and adjacent upper and lower surface zone, laser (2) is 45 °-60 ° angle incident with the sheet material upper surface, a laser facula part projects to end face, a part projects to upper surface, handles lower surface after upper surface is handled as stated above and handles end face once more.
2. the short burst laser cleaning method of metal surface according to claim 1, it is characterized in that: laser pulse width is 18～22ns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101348806A CN101332541B (en) | 2008-08-06 | 2008-08-06 | Short burst laser cleaning method of metal surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101348806A CN101332541B (en) | 2008-08-06 | 2008-08-06 | Short burst laser cleaning method of metal surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101332541A true CN101332541A (en) | 2008-12-31 |
| CN101332541B CN101332541B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101348806A Active CN101332541B (en) | 2008-08-06 | 2008-08-06 | Short burst laser cleaning method of metal surface |
Country Status (1)
| Country | Link |
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| CN (1) | CN101332541B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012010740A1 (en) * | 2010-07-20 | 2012-01-26 | Outokumpu Oyj | Method for removing an oxidation from the surface of a metal object |
| CN101768714B (en) * | 2010-02-09 | 2012-08-15 | 江苏大学 | Method for preparing thermal barrier coating by laser compound plasma spraying |
| CN103063167A (en) * | 2012-12-28 | 2013-04-24 | 江苏大学 | Method for judging laser cleaning effect automatically |
| CN105057882A (en) * | 2015-08-24 | 2015-11-18 | 北京航空航天大学 | Laser method for removing paint on autobody |
| CN105397299A (en) * | 2015-12-16 | 2016-03-16 | 深圳顺络电子股份有限公司 | Treatment method and device for surface oxidation films of tantalum capacitor tantalum wires |
| CN105689799A (en) * | 2016-04-15 | 2016-06-22 | 东莞市俊知自动机械有限公司 | Saw blade substrate and saw blade surface oxide treatment method and saw blade fabrication method |
| CN105772447A (en) * | 2016-05-17 | 2016-07-20 | 上海临仕激光科技有限公司 | Method for washing aluminum alloy oxidation film to be welded via laser |
| CN106346146A (en) * | 2016-11-04 | 2017-01-25 | 中国航空工业集团公司北京航空材料研究院 | High-energy short-pulse laser machining method for removing ceramic coatings on metal surfaces |
| CN107081529A (en) * | 2017-05-05 | 2017-08-22 | 上海航天设备制造总厂 | A kind of laser ablation method for al member top layer anode oxide film |
| CN107150086A (en) * | 2016-03-03 | 2017-09-12 | 本田技研工业株式会社 | Metal bonded body and its manufacture method |
| CN107338449A (en) * | 2017-06-13 | 2017-11-10 | 南昌航空大学 | A kind of titanium alloy surface aoxidizes skin laser cleaning method |
| CN107813053A (en) * | 2017-09-26 | 2018-03-20 | 上海航天精密机械研究所 | The sweep-out method of Aluminum alloy anode oxidation film layer |
| CN108098148A (en) * | 2017-12-28 | 2018-06-01 | 北京工业大学 | A kind of laser cleaner |
| CN108170896A (en) * | 2017-12-04 | 2018-06-15 | 武汉开目信息技术股份有限公司 | A kind of emulation mode and device that brush applied coating is applied in body surface |
| CN112372142A (en) * | 2020-11-03 | 2021-02-19 | 河北工业大学 | Femtosecond laser cleaning method for 3D printing metal surface |
| CN112548477A (en) * | 2020-07-23 | 2021-03-26 | 山东省科学院激光研究所 | Aluminum alloy spiral welded pipe welding pretreatment method based on laser cleaning technology |
| CN115475803A (en) * | 2022-09-21 | 2022-12-16 | 中国科学院微电子研究所 | Light trapping structure preparation method |
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| CN86202164U (en) * | 1986-04-14 | 1986-12-31 | 中国科学院高能物理研究所 | Focus and focus-out laser cavity |
| US5736709A (en) * | 1996-08-12 | 1998-04-07 | Armco Inc. | Descaling metal with a laser having a very short pulse width and high average power |
| US6130404A (en) * | 1997-03-03 | 2000-10-10 | Itt Automotive, Inc. | Electro-optical removal of plastic layer bonded to a metal tube |
| US6248974B1 (en) * | 2000-03-16 | 2001-06-19 | Callaway Golf Company | Method and apparatus for laser treatment of a golf ball |
| CN100455397C (en) * | 2004-01-14 | 2009-01-28 | 臼井国际产业株式会社 | Method for removing resin layer from resin-coated metal tube |
| CN100374237C (en) * | 2006-03-23 | 2008-03-12 | 北京工业大学 | Portable laser cleaning system |
| CN101143364A (en) * | 2007-10-08 | 2008-03-19 | 南开大学 | Ultrasonic detection narrow pulsewidth laser sludge remover and its sludge removing method |
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2008
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|---|---|---|---|---|
| CN101768714B (en) * | 2010-02-09 | 2012-08-15 | 江苏大学 | Method for preparing thermal barrier coating by laser compound plasma spraying |
| WO2012010740A1 (en) * | 2010-07-20 | 2012-01-26 | Outokumpu Oyj | Method for removing an oxidation from the surface of a metal object |
| CN103063167A (en) * | 2012-12-28 | 2013-04-24 | 江苏大学 | Method for judging laser cleaning effect automatically |
| CN103063167B (en) * | 2012-12-28 | 2015-11-18 | 江苏大学 | A kind of method of automatic decision laser cleaning effect |
| CN105057882A (en) * | 2015-08-24 | 2015-11-18 | 北京航空航天大学 | Laser method for removing paint on autobody |
| CN105397299A (en) * | 2015-12-16 | 2016-03-16 | 深圳顺络电子股份有限公司 | Treatment method and device for surface oxidation films of tantalum capacitor tantalum wires |
| CN107150086A (en) * | 2016-03-03 | 2017-09-12 | 本田技研工业株式会社 | Metal bonded body and its manufacture method |
| CN107150086B (en) * | 2016-03-03 | 2019-03-01 | 本田技研工业株式会社 | Metal bonded body and its manufacturing method |
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| CN105689799B (en) * | 2016-04-15 | 2018-02-16 | 东莞市俊知自动机械有限公司 | Saw blade manufacture method |
| CN105772447A (en) * | 2016-05-17 | 2016-07-20 | 上海临仕激光科技有限公司 | Method for washing aluminum alloy oxidation film to be welded via laser |
| CN105772447B (en) * | 2016-05-17 | 2019-02-22 | 上海临仕激光科技有限公司 | A kind of method that Process on Aluminum Alloy Oxidation Film welds preceding laser cleaning |
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| CN106346146A (en) * | 2016-11-04 | 2017-01-25 | 中国航空工业集团公司北京航空材料研究院 | High-energy short-pulse laser machining method for removing ceramic coatings on metal surfaces |
| CN107081529A (en) * | 2017-05-05 | 2017-08-22 | 上海航天设备制造总厂 | A kind of laser ablation method for al member top layer anode oxide film |
| CN107338449A (en) * | 2017-06-13 | 2017-11-10 | 南昌航空大学 | A kind of titanium alloy surface aoxidizes skin laser cleaning method |
| CN107813053A (en) * | 2017-09-26 | 2018-03-20 | 上海航天精密机械研究所 | The sweep-out method of Aluminum alloy anode oxidation film layer |
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| CN108170896B (en) * | 2017-12-04 | 2021-05-18 | 武汉开目信息技术股份有限公司 | Simulation method and device for coating on surface of object |
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| CN112372142A (en) * | 2020-11-03 | 2021-02-19 | 河北工业大学 | Femtosecond laser cleaning method for 3D printing metal surface |
| CN115475803A (en) * | 2022-09-21 | 2022-12-16 | 中国科学院微电子研究所 | Light trapping structure preparation method |
| CN115475803B (en) * | 2022-09-21 | 2024-03-19 | 中国科学院微电子研究所 | Preparation method of light trapping structure |
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| CN101332541B (en) | 2011-09-07 |
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